internal bool validateAnchor(Arrow arrow, bool outgoing, Node node, int pointIndex)
{
if (ValidateAnchorPoint != null)
{
AttachConfirmArgs args = new AttachConfirmArgs(arrow,
node, outgoing, pointIndex, 0);
ValidateAnchorPoint(this, args);
return args.Confirm;
}
return true;
}
internal bool requestAttach(Arrow arrow, bool changingOrg, Node node)
{
if (ArrowAttaching != null)
{
PointF endPt = changingOrg ? arrow.Points[0] : arrow.Points[arrow.Points.Count - 1];
int id = 0;
int row = -1;
node.getAnchor(endPt, arrow, !changingOrg, ref id);
// get the row if attaching to table
Table table = node as Table;
if (table != null)
row = table.rowFromPt(endPt);
AttachConfirmArgs args = new AttachConfirmArgs(arrow,
node, changingOrg, id, row);
ArrowAttaching(this, args);
return args.Confirm;
}
return true;
}
/// <summary>
/// 箭头绘画
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void flowChart1_ArrowCreating(object sender, AttachConfirmArgs e)
{
Box destBox = (Box)e.Destination;
Box originBox=(Box)e.Origin;
//判断连接点的输入元件类型是否相同,相同则不允许连接
if (MainFormExt.ConnectorElements.Contains(destBox))
{
foreach (Arrow arrow in destBox.IncomingArrows)
{
Box box = (Box)arrow.Destination;
if (box.Text == destBox.Text)
{
e.Confirm = false;
return;
}
}
}
if (MainFormExt.ComponentElements.Contains(originBox)&&
MainFormExt.ComponentElements.Contains(destBox) &&
(originBox.OutgoingArrows.Count > 0 || destBox.IncomingArrows.Count > 0))
{
e.Confirm = false;
return;
}
else if (MainFormExt.StartElements.Contains(originBox) &&
//originBox.OutgoingArrows.Count<=0&&
MainFormExt.ComponentElements.Contains(destBox))
{
e.Confirm = true;
}
else if (MainFormExt.ConnectorElements.Contains(originBox) &&
MainFormExt.ComponentElements.Contains(destBox))
{
e.Confirm = true;
}
else if (MainFormExt.ComponentElements.Contains(originBox) &&
(MainFormExt.ComponentElements.Contains(destBox) ||
(MainFormExt.EndElements.Contains(destBox)
//&&destBox.IncomingArrows.Count<=0
) ||
MainFormExt.ConnectorElements.Contains(destBox)
)
)
{
e.Confirm = true;
}
else
{
e.Confirm = false;
return;
}
BoxPropertiesExt pro = new BoxPropertiesExt();
pro.property = (Element)new ArrowElement();
pro.model = "-3";
e.Arrow.Tag = pro;
ArrowConfirmArgs args = new ArrowConfirmArgs(e.Arrow);
flowChart1_ArrowSelecting(this.propertyGrid1, args);
//this.propertyGrid1.SelectedObject = pro;
}
internal bool confirmCreate(ChartObject item)
{
PointF point = AlignPointToGrid(interaction.CurrentPoint);
bool validated = true;
switch (item.getType())
{
case ItemType.Box:
if (BoxCreating != null)
{
BoxConfirmArgs args = new BoxConfirmArgs((Box)item, point, -1);
BoxCreating(this, args);
validated = args.Confirm;
}
break;
case ItemType.ControlHost:
if (ControlHostCreating != null)
{
ControlHostConfirmArgs args =
new ControlHostConfirmArgs((ControlHost)item, point, -1);
ControlHostCreating(this, args);
validated = args.Confirm;
}
break;
case ItemType.Table:
if (TableCreating != null)
{
TableConfirmArgs args = new TableConfirmArgs((Table)item, point, -1);
TableCreating(this, args);
validated = args.Confirm;
}
break;
case ItemType.Arrow:
if (ArrowCreating != null)
{
Arrow arrow = (Arrow)item;
PointF endPt = arrow.Points[arrow.Points.Count - 1];
int id = 0;
int row = -1;
arrow.NewDest.getAnchor(endPt, arrow, true, ref id);
if (arrow.NewDest is Table)
row = ((Table)arrow.NewDest).rowFromPt(endPt);
AttachConfirmArgs args = new AttachConfirmArgs(
arrow, arrow.NewDest, false, id, row);
ArrowCreating(this, args);
validated = args.Confirm;
}
break;
}
return validated;
}
private void fcFlowChart_ArrowCreating(object sender, AttachConfirmArgs e)
{
SysCAD.Protocol.Point originPos = new SysCAD.Protocol.Point(e.Arrow.ControlPoints[0]);
Box originBox = fcFlowChart.GetBoxAt(originPos.ToPointF(), 2.0F);
originBox = (originBox.Tag as EditorNode).ModelBox;
if (originBox != null)
{
int closestI = 0;
Double closestDistance = Double.MaxValue;
for (int i = 0; i < originBox.AnchorPattern.Points.Count; i++)
{
if (originBox.AnchorPattern.Points[i].AllowOutgoing)
{
SysCAD.Protocol.Point anchorPointPos = GetRelativeAnchorPosition(new SysCAD.Protocol.Rectangle(originBox.BoundingRect),
originBox.AnchorPattern.Points[i].X,
originBox.AnchorPattern.Points[i].Y,
originBox.RotationAngle);
Double thisDistance = Distance(originPos, anchorPointPos);
if (thisDistance < closestDistance)
{
closestDistance = thisDistance;
closestI = i;
}
}
}
newOriginGuid = (originBox.Tag as EditorNode).Guid;
newOriginTag = (originBox.Tag as EditorNode).Tag;
newOriginBox = originBox;
newOriginAnchor = closestI;
}
DoArrowModifyingOperations(e.Arrow, e.Arrow.ControlPoints.Count - 1);
//arrowBeingModified = e.Arrow;
//arrowBeingModified.CustomDraw = CustomDraw.Additional;
//arrowBeingModified.ZTop();
//fcFlowChart.RecreateCacheImage();
}